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AT&T LTE and Network Discussion

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My signal at work9c5378ff6b2d5c68f8eb6e31954b5718.jpgdcd809612c43be1ff8c8c3043afe637a.jpg

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My office is about the same, this building is a black hole for all cell service. The only carrier that works in here is T Mobile since our LAN admin put in a Cell Spot for his phone. Thankfully we have good wifi and wifi calling works great on my S9 plus.398155f6b300ed88471ed73bbcb98bf8.jpg32a16e4ae9ffb0b0ccedd6c612877368.jpg

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My office is about the same, this building is a black hole for all cell service. The only carrier that works in here is T Mobile since our LAN admin put in a Cell Spot for his phone. Thankfully we have good wifi and wifi calling works great on my S9 plus.398155f6b300ed88471ed73bbcb98bf8.jpg32a16e4ae9ffb0b0ccedd6c612877368.jpg

 

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I have the unlocked model so no wifi calling for me. I had it on this phone with TMO and Sprint. Might see how VZW does next. Maybe. Vzw and Sprint work best at my work. Sprint is on the roof and I think VZW put up a new tower.

 

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You're phone was not active/authenticated on the network if it said emergency calls only. That being said, the fact that your phone continued to show signal is interesting. It could have just been a software glitch. Or a roaming agreement could be imminent. 
Ive also noticed recently while sitting at my desk in my office, if wifi is on it will connect to our T Mobile cell spot. It doesn't actually connect and pass traffic if I turn off wifi but it will sit on it for hours as long as I keep wifi with wifi calling on. I wonder if they are getting ready to start refarming the last HSPA spectrum in some markets and are about to enable domestic LTE roaming? Either way, I don't remember my phone showing Verizon or T Mobile until recently. The PCI is wrong on the service mode screenshot, 67 is the weak AT&T site I hit at my office. But it shows the T Mobile PLMN of 310260 and correct EARFCN. Interesting either way.a6fccaa72dfa90a49ab14f0a3db006b3.jpg5748c4c1a9f2fcd01927056c9e19a16d.jpg0ecc0a297675f195b348f62c86799407.jpg

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Applications for about 60 permits for new AT&T small cells have been filed in the last few months and are being constructed rapidly.  At this rate AT&T could have more small cells than Sprint by the end of the year.

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